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Plz Help!!! 20 points. What is the main idea of "Bike Safety: Intersections"?

A Bikers need to use the proper, legal methods for navigating intersections. B Bikers need to be aware of bicyle laws in their hometowns.
C Biking is fun and safe if precautions are taken and rules and laws are followed. D Helmets should always be worn when biking.